Syzygy endgame tablebases

Black is losing with DTZ 127

This is a blessed loss. Mate can be forced, but a draw can be achieved under the fifty-move rule.


Histogram: KPPP winning vs. KBB (log scale)

Longest KPPPvKBB phases

KPPPvKBB statistics (unique positions)

White wins:
299,628,142,068 (30.5%)
Frustrated white wins:
569,319,420 (0.1%)
410,670,494,808 (41.8%)
Frustrated black wins:
53,492,928 (0.0%)
Black wins:
271,329,532,944 (27.6%)
KPPPvKBB.json (?)